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Finding the Fourth Proportional to 484,099.40, 668,065.76 and 269,239.57

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Solution

The fourth proportional to 484,099.40, 668,065.76 and 269,239.57 is: 371,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,099.40 : 668,065.76 = 269,239.57 : x
  2. Step 2: Convert to fraction form
    484,099.40/668,065.76 = 269,239.57/x
  3. Step 3: Cross multiply
    484,099.40x = 668,065.76 × 269,239.57
  4. Step 4: Simplify right side
    484,099.40x = 179,869,737,954.12
  5. Step 5: Solve for x
    x = 179,869,737,954.12/484,099.40
  6. Step 6: Final answer
    x = 371,555.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.